Window sash and frame and fittings therefor.



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J. STUMPF. WINDOW SASH AND FRAME AND FITTINGS THEREFOR.

(Application filed Seijt. 15, 1900.)

2 Sheets-Sheet I.

(No Model.)

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J. STUMPF. WINDOW SASH ANDIHFBAME AND FFTT'INGS THEREFOR.

(Application filed Sept. 16, 1900.) (No Model. 2 Sheets-Sheet 2.

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UNITED STATES PATENT FFICE.

JOHANNES STUMPF, or BERLIN, GERMANY.

WINDOW SASH AND FRAME AND FI'FI'TINGS THEREFOR.

SPECIFICATION forming part of Letters Patent N 0. 676,159, dated June 11, 1901.

Application filed September 15, 1900. Serial No. 30,200. (No model.)

1b all whom it may concern:

Be it known that I, J OHANNES STUMPF, engineer, a subject of the German Emperor, residing at Berlin, in the German Empire, have invented new and useful'Improvements in Window Sashes and Frames and in Fittings Therefor, of which the following is a specification.

The present invention relates to certain new and useful improvements in window sashes and frames and in fittings therefor, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, in which- Figure 1 is a vertical section of the sashframe with the sashes removed and showing the grooves or races in which the. sashes are movable. Fig. 2 is a side elevation of the two sashes in their normal position situated one above the other. Fig.3 illustrates, on an enlarged scale and in a side elevation, the lower end of the sash with its fittings, the sash being situated vertically in the grooves or races in the sash-frame, indicated in dotted lines. Fig. at is a View similar to that of Fig. 3, the sash being shown swung inwardly. Fig. 5 is a horizontal section through a sashframe constructed to accommodate two pairs of sashes, one in front of the other. Fig. 6 represents a vertical section on line A B of Fig. 1, and Fig. 7 represents a section on line C D of Fig. 1. Fig. 8 is a horizontal section through the sash-frame with the lower sash in its closed position. Fig. 9 represents in side elevationthe lower end of the sash-frame with the lower sash being swung inwardly. Fig. 10 shows on an enlarged scale in section on line E F of Fig. 8 a spring-button in top view, which is shown in Fig. 11 in side elevation.

My invention relates to the construction of windows and window-sash attachments of that class in which two normally superposed sashes suitably balanced and guided in grooves or races in thesash-frame are adapted to be swung inwardly or removed from the frame for the purpose of cleaning them.

. The objects aimed at in the present invention are to insure the sashes being air-tightly closed when in their normal superposed positions, to prevent accidental opening of the sashes by the sash-weights attached to them,

and to render more efficient, durable, and serviceable in operation this class of sashwindows, while at the same time aiming at simplicity in the construction of the window. The provision of the grooves or races in the sash-frame or the pulley-stiles of the latter, respectively, which grooves converge into one at their lower extremities, enables the two sashes to assume a position one behind the other either at the upper or lower part of the window.

. In the drawings the numerals 1 and 2 indicate the two sashes, which are adapted to move in grooves or races running the entire length of the pulley-stiles of the sash-frame 3 and converging into one at their lower extremities. The upper sash 1 has its vertical stiles fitted'with studs 4 at the upper end and studs 5 at the lower end, while the lower sash 2 is fitted with the studs 6 and 7, respectively. To the studs 5 of the upper sash and to the studs 7 of the lower sash lines are attached,

which, in the usual manner, are in connectionwith thesash-weights located in the windowframe. The sash-line 8 for the lower sash 2 runs through a bore 10, and the sash-line 9 for the upper sash 2 runs through a bore 11 in the pulley-stiles, behind which they are connected to the sash-weights in the customary manner.

, The numeral 12 indicates the vertical guide groove or race for the upper sash, and 13 the guide-groove for the lower sash. About the middle of the window-frame a horizontal or somewhat inclined or curved groove 14 leads from the guide-groove 12 and, crossing the guide-groove 13, terminates at the inner edge of the window-frame. From the bottom end of the groove 12 a groove 15 starts, which, running in upwardly-inclined direction, terminates in the vertical groove 13. At the bottom end of the groove 12 a stud 16 is provided which facilitates the swinging inwardly of the sashes, so that the latter may ultimately assume a horizontal position. The metal plates 17, embedded at the lower ends of the vertical stiles of the two sashes, serve for the same purpose, as will be more fully explained later on.

The top horizontal stile 27 of the lower sash 2 is provided with the before-mentioned studs or shooting-bolts 6, which are adapted to be actuated by the button 18 in sucha manner,

20, to which corresponds a projecting head '21 in connection with the top stile of the window-frame.

The sashesare externally fitted with weather bead-sandwith' grooves and corresponding'projections to insure a draft-proof closingofthe: window in .th'etcustomary manner.

The-metal plates 17, embedded at thelower en-cl stot the verticalstiles of the sashes, soas to'be ftushwith same, are. provided: witha partly-circular incision around the studs-7 andw5, respectively, which is continued to thebottom edge of the vertical rail, for a purpose-to; be explained later on.

The vertical stiles of the. window-frameB arefitted in front of theverticalguide-groove 13'withrthe.spring-buttons 24 25 26,.of any suitable. number and arranged at suitable distances apart, for the purpose of affording a stopor-rest for the sash,.which.is swunginwardlyto the desired extent.

, can b eicaused to rest onthe next lower set of for cleaning or repairing. purposes. Dlllillgi spring-.b-uttons,and so on. Taperin g the buttonsat their lower faces enables the sash on same-"rising toward the vertical position to pressithe buttons into their recesses in thepullieystiles'without auxiliary help.

The-,operationof my inventionisas follows:

When, the window is closed, the meeting-rail or. stile of theiupper sash rests firmly on. the

meeting-rail of the lower sash and the-guidestuds-andboltsrest invertical groove 12'and, more-particularly, the guide-studs 7 at the bottom end. of-the-lower sash 2 reston the studs 16:at the lower end of said vertical groove12,whilethese-studs 16 engage the-imcis-ion23 in= the metal plates 17 inconnection:

w-izthithe-vertical stiles of the sash.

I norder toopen and elevatethe lower sash 2,-the turn-button 18 has to be actuated so as -to.'retract thebolts-6 from the recesses 19:

requiredtobeswung inwardly, untiliit restsat the desired angle on the spring-buttons 25 or261; Thesash may beswung inwardly until itsposi-tion :is horizontal, or'approximately so,

By pressing the: buttons intovthe. pulley-stiles the sash this turning inward of the sashes the studs 16, on which normally rest the guide-studs 7,

prevent the latter from running up the guidegrooves under the influence of the sash weights when the sash has taken up an inclined orhorizontal position. Said studs 16, which enter the incisions 23 of the plates 17 on turning the sash inwardly, move in the circular groove around the stud 7 when turning the lower sash 2 until arriving at the end of the groove, when they will be situated at the side of the studs 7 farthest from the mouth of the incision 23.

When the lower sash is situated in the top portion of the vertical guide-grooves 13, the

- top sash can be pulled down in the verticalgui-de-grooves 12 in the usual manner. When the top sash ispulled I down to its fullestjex ten-t,the studs16 hereinb'efore mentioned have entered the channels-or incisions-in the plates 17in connection. with: this sash. Theupper guide-studs 4 are then situated opposite the cross guide-grooves 14:, thus enabling the upper sash to be. brought intov a horizontal position in a manner similar to that described with regard toth'e lower sash. elevated a sash its. removal from the windowframe 3 is enabled by pulling it toward" the interior of the room, so that the guide-studs at thelower end of the sash separate: from the grooves in the pulley-stiles by passing out of the cross-groove 14, whereupon a similar operation is performed to separate the: two

guide-studs from the-window-frame- In. this manner both. thesashes can beseparated. from and reinserted. into the window+framei J Doublewindows are constructed. by simply duplicating. the arrangements herein-beforedescribed'. An instance of this-is indicated 1 in Fig; 5.

. Thervertical groovesor races! 13 extending over the entire length of the:pu1:ley-stile,it is possibleto place the two.sashes on'ebehi nd theother in the lower half of the windowr- Inv the cross-grooves-M theprovisiou oti-a:

rectangularly-bent flat spring28 may bead vantageous to serve-as a stopforthe-fm'ovable rods 6 in their-passage throughsaid groovesr Theadvantages of my inventionwil-l heap parent to those skilled in. the art, since the sashes may quickly and easily be swungin wardly without theremovalof stops, beads, or

strips or. any other tedious or. cumbersome manipulation, whiletheir ordinary operation is not hindered The advantageofbeing-ienabled to remove-the sashes-from;the'windowframe is also very appreciable, and the whole constructioniis simple:and durable;

' It w-illxbeunders'tood that the invention can easily be applied to counterbalancing-sashes; and many other changesmay beunadezin theform and arrangements of the parts without departing from-the scope of my invention. What I claimas :new, and desire to secure by LettersPatent, is-

1. The combinationwitrhlthe-stiles of a'rwi-ndow-frame havingthe sashessituated in aline- IIO inent whenthe window is closed, of a plurality of guide-grooves for the sashes, the two vertical ones of equal length connected together at the bottom end by an upwardly-inclined groove and a third one leading from the center of the outer vertical guide-groove across the second vertical guide-groove to the inner edge of the stile, substantially as'and for the purpose set forth.

2. The combination with the stiles of a window-frame having the sashes situated in alinement when the window is closed, of a plurality of guide-grooves for the sashes, the two vertical ones of equal length connected toclined position, substantially as described and I for the purpose specified.

gether at the bottom end by an upwardly-inclined groove and a third one leading from the center of the outer vertical guide-groove across the second vertical guide-groove to the inner edge of the stile and a stud at the bottom end of the outer vertical guide-groove and at the end of the communicating groove, said stud projecting from the surface of the pulley-stile, substantially as and for the purpose set forth.

3. In combination with the bottom end of the side rails of window-sashes and in combination with the projecting stud at the lower end of the two converging grooves in a pulley-stile a plate having a partly-circular incision and a center piece for the-purpose of preventing the inclined sash from traveling up the guide-grooves by the stud projecting from the bottom end of the latter entering said circular incision, substantially as and for the purpose set forth.

4. In a window having the sashes situated in alinement when closed, in combination; a plurality of guide-grooves in the windowframe stiles; studs projecting from the latter at the bottom end of the converging guide- 1 grooves; the sashes movable in the aforesaid guide-grooves, and provided with guide-pins at the top and bottom of the side rails; a metal plate having a partly-circular incision and a center piece at the bottom end of the said side rails; the top guide-pins retractable into recesses to permit the sashes being swung inward around the lower guide-pins which constitute the center in the circular incisions andmeans for retaining the sashes in an in- 5. In combination with the bottom end of the side rails of window-sashes,- and in combination with a circular stud situated at the bottom of the meeting-point of the vertical guide-grooves in the window-frame, a metal plate inserted in said rails so as to be flush with Sam e, said metal plate provided with an incision which continues a groove to the edge of the rail so as to receive the aforesaid circular stud and prevent the ascent of the in- 1 wardly-swung sash in the unoccupied verti cal guide-grooves, substantiallyas set forth, In testimony whereof I have hereunto set my hand in presence of two subscribing wit- MARIE SoHULz, ERNST LEHMANN. 

